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Broad Street Bridge

Broad Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 11, 2013


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Key Facts

Facility Carried / Feature Intersected
US-52 and IA-64 (Broad Street) Over Mississippi River Overflow
Location
Sabula: Jackson County, Iowa: United States
Structure Type
Metal 7 Panel Rivet-Connected Pratt Through Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1933 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
1985
Main Span Length
120 Feet (36.58 Meters)
Structure Length
342 Feet (104.24 Meters)
Roadway Width
20 Feet (6.1 Meters)
Spans
1 Main Span(s) and 2 Approach Span(s)
NBI Number
29950

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This bridge spans a gap in a causeway that allows overflow from the Mississippi River to pass under. The bridge is a traditionally composed example of a truss bridge from the 1930s. Its overhead bracing has been altered to increase vertical clearance on the bridge. This is evident because their are unused rivets on the vertical members, and above them the knee bracing is welded to the vertical instead of riveted. The welded knees appear to use original bridge material however because the knee bracing beams themselves are riveted.

The bridge includes two steel stringer approach spans. It has concrete piers whose compositon includes a riveted steel caisson component at each end.

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Photos and Videos: Broad Street Bridge

Available Photo Galleries and Videos

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Bridge Photo-Documentation
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A collection of overview and detail photos. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
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Bridge Photo-Documentation
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A collection of overview and detail photos. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
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CarCam: Northbound Crossing
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
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CarCam: Southbound Crossing
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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